National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Partly Cloudy

62°F

17°C

Humidity 68%
Wind Speed S 7 mph
Barometer 29.93 in
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 11 Mar 4:15 am EDT
Extended Forecast for

Bel Air South MD

  • Today

    Today: Rain likely, mainly after 4pm. Mostly cloudy, with a high near 72. South wind 5 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 72 °F

    Rain Likely

  • Tonight

    Tonight: A chance of rain and thunderstorms, then showers after 2am. Low around 44. South wind 10 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Chance
    Showers then
    Showers

  • Thursday

    Thursday: Rain showers before 2pm, then a slight chance of rain and snow showers. Temperature falling to around 45 by 11am. Breezy, with a northwest wind 16 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 46 °F⇓

    Showers and
    Breezy then
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31. Northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 50. Breezy, with a south wind 5 to 10 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 38 mph.

    High: 50 °F

    Partly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Cloudy, with a high near 55.

    High: 55 °F

    Cloudy

Detailed Forecast

Today
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 72. South wind 5 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
A chance of rain and thunderstorms, then showers after 2am. Low around 44. South wind 10 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Rain showers before 2pm, then a slight chance of rain and snow showers. Temperature falling to around 45 by 11am. Breezy, with a northwest wind 16 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
Mostly clear, with a low around 31. Northwest wind 5 to 8 mph becoming calm after midnight.
Friday
Partly sunny, with a high near 50. Breezy, with a south wind 5 to 10 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 38 mph.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Sunny, with a high near 51.
Saturday Night
Mostly cloudy, with a low around 36.
Sunday
Cloudy, with a high near 55.
Sunday Night
Rain, mainly after 2am. Low around 47. Chance of precipitation is 80%.
Monday
Rain. High near 59. Chance of precipitation is 80%.
Monday Night
A chance of rain. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 37.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Bel Air South MD
 39.51°N 76.34°W (Elev. 249 ft)
Last Update:
1:53 am EDT Mar 11, 2026
Forecast Valid:
4am EDT Mar 11, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation